This is an experimental alternative user-interface for Twitter.
It's intended to be much simpler than the standard UI,
and to provide a platform for testing new ideas.

The most notable difference is that tweets are always presented
in actual chronologcal order, instead of the standard UI's
mostly (but not always) reverse-chronological order.
In this UI, older tweets are at the top and newer tweets
are at the bottom.
This lets you read sequences of tweets just like you read any
other text, from top to bottom.
How did the whole reverse-chronological thing get started anyway?
It seems silly.

Another interesting difference is that it saves your scrolling
position, when possible.
That xkcd comic over on the right?
Problem (mostly) solved.
I hope every website that does infinite scrolling implements this.
It's easy to do and the benefit for the user is huge.

Also, a result of being much simpler is that it seems to
be much faster too.
See what you think.

Apart from simplicity and speed, the overall design goals are:

Standard web UI conventions.

Consistent use of direction.

No surprises.

No jumping around.

There are some features missing here.
For instance, the Notifications page doesn't show some interactions
such as retweets of retweets, because Twitter's API doesn't
expose those (their own UI must be using undocumented or
private interfaces to get them).
No lists, blocking, or retweet blocking.
Lots of other minor features missing for now.
And the icons are ugly.